what are the primary causes of respiratory acidosis

ATI LPN

PN ATI Comprehensive Predictor

1. What are the primary causes of respiratory acidosis?

A. Hypoventilation and lung disease
B. Hyperventilation and pneumonia
C. Increased oxygen saturation and tachypnea
D. Dehydration and hypoxia

Correct answer: A

Rationale: The correct answer is A: Hypoventilation and lung disease. Respiratory acidosis occurs when there is an accumulation of CO2 in the body due to inadequate ventilation. Hypoventilation, which reduces the elimination of CO2, and lung diseases that impair gas exchange are the primary causes. Choice B is incorrect because hyperventilation, not hypoventilation, leads to respiratory alkalosis, not acidosis. Choice C is incorrect because increased oxygen saturation and tachypnea do not directly cause respiratory acidosis. Choice D is incorrect as dehydration and hypoxia do not typically lead to respiratory acidosis.

2. What are the early signs of a pulmonary embolism?

A. Chest pain, shortness of breath, and tachycardia
B. Fever, nausea, and vomiting
C. Cough, cyanosis, and fatigue
D. Abdominal pain and bradycardia

Correct answer: A

Rationale: The correct answer is A: Chest pain, shortness of breath, and tachycardia. These are classic early signs of a pulmonary embolism. Chest pain may be sudden and sharp, worsened by deep breathing or coughing. Shortness of breath can be sudden and severe. Tachycardia (rapid heart rate) is another common symptom. Choices B, C, and D are incorrect as they do not represent typical early signs of a pulmonary embolism.

3. How should a healthcare professional assess a patient with suspected sepsis?

A. Monitor vital signs and administer antibiotics
B. Monitor for signs of infection and confusion
C. Monitor for fever and check oxygen saturation
D. Assess for confusion and administer fluids

Correct answer: A

Rationale: When assessing a patient with suspected sepsis, it is crucial to monitor vital signs like temperature, heart rate, respiratory rate, and blood pressure. Administering antibiotics promptly is also vital to treat the infection causing sepsis. This approach helps in preventing the progression of sepsis to severe stages and reduces the risk of complications. Choice B is incorrect because only monitoring signs of infection and confusion may delay necessary treatment with antibiotics. Choice C is incorrect as it focuses only on fever and oxygen saturation, missing other important vital signs. Choice D is incorrect because assessing for confusion alone is not sufficient, and administering fluids should be guided by the patient's fluid status rather than being an initial step in suspected sepsis assessment.

4. What is the most important intervention for a client with delirium?

A. Administer sedative medication
B. Identify any reversible causes of delirium
C. Provide a low-stimulation environment
D. Increase environmental stimulation

Correct answer: B

Rationale: The correct answer is to identify any reversible causes of delirium. Delirium can be caused by various factors such as infections, medications, or metabolic imbalances. Addressing these underlying causes can help resolve delirium. Administering sedative medication (Choice A) can worsen delirium by further altering mental status. Providing a low-stimulation environment (Choice C) is helpful to manage delirium symptoms, but it is not the most important intervention. Increasing environmental stimulation (Choice D) is contraindicated in delirium as it can exacerbate confusion and agitation.

5. How should a healthcare provider assess a patient with potential diabetic ketoacidosis (DKA)?

A. Monitor blood glucose and check for ketones in urine
B. Administer insulin and provide fluids
C. Administer potassium and check for electrolyte imbalance
D. Administer sodium bicarbonate and monitor urine output

Correct answer: A

Rationale: Correct answer: To assess a patient with potential diabetic ketoacidosis (DKA), healthcare providers should monitor blood glucose and check for ketones in the urine. Elevated blood glucose levels and the presence of ketones in urine are indicative of DKA. Choice B is incorrect because administering insulin and providing fluids are treatments for DKA rather than assessment measures. Choice C is incorrect as administering potassium and checking for electrolyte imbalance are interventions related to managing DKA complications, not initial assessment. Choice D is incorrect because administering sodium bicarbonate and monitoring urine output are not primary assessment actions for DKA.